MicroRNA-204 is required for differentiation of human-derived cardiomyocyte progenitor cells

► Human cardiomyocyte progenitor cells are isolated from human fetal heart tissues. ► MiRNA-204 inhibition promotes human cardiomyocyte progenitor cell proliferation. ► MiRNA-204 is required for human cardiomyocyte progenitor cell differentiation. ► Activating transcription factor 2 is a target gene of miRNA-204.